Oiler for disk drills



R. W. LEWIS.

OILER FOR DISK DRILLS. APPLICATION HLED'JUNE I8. 1918.

Patented July 5, 19211.

INVENTOR S E S 8 H W ATTOR EY ROBERT W. LEWIS, OF GRANVILLE, NORTHDAKOTA.

, OILER FOR DISK DRILLS.

Applicationfiled June 18,

To all whom it may concern:

Be it known that I, ROBERT W. LnwIs, a Citizen of the United States,residing at Granville, North Dakota, have invented certain new anduseful Improvements in Oilers for Disk Drills, of which the following isa specification.

My invention relates to new and usefu improvements in lubricators, andan important object of my invention is to provide a device of the abovementioned character which eliminates the usual disadvantages in removingthe several grease caps of the usual disk drills in order tolubricatethe spindles thereof, and to provide means whereby thelubricant reservoir may be positioned in a place easily accessible tothe operator and whereby the lubricant will be fed to. the spindle bygravity.

Another object of my invention is to provide a device including a boltso constructed that the spindle of the disk drill Wlll be thoroughlylubricated and so that the bolt may be readily removed from the spindleto facilitate the removal of the-various parts.

A further object of my invention is to provide a device of the abovementioned character including a lubricant reservoir, the top of which isresiliently secured to the body of the reservoir so that said top may besecurely held in position preventing foreign matter from entering thereservoir and to facilitate an easy placement of the top.

Other objects and advantages will be apparent during the course of thefollowing description."

In the accompanying drawings, forming a part of the description andwherein like numerals of reference are employed .to designate like partsthroughout the. same,

Figure 1 is aside elevation of the usual planter shoe and disk drillattached thereto, showing my invention applied thereto.

. Fig. 2 is a transverse sectional view through Fig. 1. I

Fig. 3 is a transverse sectional view through a modified form of myinvention, showing a longitudinal vertical sectional view through thelubricant reservoir, and the pipe leading therefrom.

In the drawings, wherein is shown a preferred embodiment of myinvention, the numeral 1 designates'the usual planter shoe,

which is arranged upon the convex side of the disk drill 2, and isprovided with adownwardly extending arm 3 which supports the lubricantchamber,

Specification of Letters Patent. Patented J l 5 1921 1918. Serial No.240,565.

disk drill. The lower end of this arm.3 is provided with a groove 4which accommodates. the draw bar 5 which is provided with an openlng 6to aline with an irregular opening 7 in the lower end of the'supportingarm 3 and this irregular opening ,7 communicates with the grooveorrecess 4 in the arm 3.

The disk drill is provided with a hub upon the concave side of the disk,and'is provided with a bore 9 therethrough which is enlarged as at 10adjacent the disk drill. Adapted to be received in the bore 9 andenlarged part thereof, is a spindle 11 having an enlarged end 12 to fitinto the enlarged part of the bore. The outer end of the spindleis-provided with an irregular head 13 adapted to snugly engage theirregular opening 7 in the supporting arm so as to' prevent the splndlefrom rotary movement. As shown in Fig. 2 of the drawing, the spindle isprovided with a threaded bore 14 therethrough which leads into alubricating chamber 15 in the inner end of the spindle adjacent the diskdrill. The disk drill 2 is provided with a central threaded opening tocommunicate with the lubricant chamber 15 so as to accommodate athreaded cap 16. In order .to lubricate the spindle of the present formof disk drill, it is necessary to remove the several caps 16 so as toprovide an entrance into 7 the lubricating chamber 15 in the spindle.After these several caps have been removed, the operator must go to eachseparate disk and insert a lubricant through the central threadedopening in the disk drill which accommodates the cap 16. After fillingthe the operator must again go to each disk and secure the cap 16.

A washer 17 is interposed between the supporting arm 3 and the hub 8 ofthe disk upon the spindle so as to exclude all foreign matter, such asdust and dirt, accumulating upon the spindle and eventually gainingaccess to the bore through the hub 8 and imposing wear upon both thespindle and said bore. The washer 17 is provided with an extension, notshown, which enters a suitable recess in the supporting arm. Thisconstruction prevents the washer 17 from rotating upon the spindle.Interposed between the washer 17 and the supporting arm 3 upon thespindle is a coil spring 18 which is assigned to urge the washer intoclose engagement with the'hu'b.

My invention eliminates the disadvantages and trouble of removing thecaps 16 to pass lubricant into the lubricant chamber 15 in isusedas-astud. bolt, thethreaded shank 20 ott'heboltfisuadapted forthreaded engagethe spindle; in yention embodiestwo forms of connectionfor joining or securing the disk drill to the supporting arm; Thisconnection serves a'twofold purpose, namely,

for supplying a lubricant to the lubricating chamber, and

connection 1s merely an ordinary bolthaving an oil duct or boreextending longitudinally entirely through the shank andthe;v head 2l-theeQ -g-A .i in thei'orin shown in Fig 2 Wherethe bolt ibel 1t] with thethreaded, bore 14; through the spindle by passing; through; the,openingfi in e drawbar and throughgthe lower endgof thesu-pportingarmB.Whentheparts are assembl'ed; the vfree end of the shank extends slightlyinto the oilgchamber; 1 5,, in the spindie, andtheheadoi the boltabuts-iwiththe I is. provided draw; 'bar 1 for securing t11e- ,diskdrill to the V S PPOI I gfi L'X oil5supi z ly pipe 22 is arrangedv-erztig cal ly of therapparatusband is held; inposi- .tion hy avbracket 23 which is secured to thesupporting arrIiB of the; plantershoe. The-lower endaof; the supplypipe 22 is 7' bent inwardly to; be;joined to: the; head 21 -,o-t the.= bolt so that the oil will pass fromthe supply pipe 22 into the bore through the bolt .Theupper endxoi thesupply pipe is 5 pr oyidedywith. a lu i ant, chamber 25 as more clearlyshoWn. -in -Fig; 3 ofthe drawings, which is substantially rectangular inshape vandhas a part 26 of its bottomin- Vcl ined doyyfmvardly to, thebottom 27 hich K thisv co er., adj agent; the forwardend thereof, Y llproyidefan eyelet, 32 towhich is. secured,

one end: of arcoilfspri ng .33; whichhas its pn i l end se u d m a ed: 3whi i secured Y to a the opposite sides of the reser- .yjoir atjtheena-thereofz-opposite the end of the springrwhich I tionstri ctionethetithe.

- Wet J r-. s nga ed, fi m h -l g s fv the.

is secured to the, cover It will be seen by this spring: 3.3 is arrangedwhen, the 'fianges lot the of] the reservoir.

t l; angl so. that] spri @willshdel the cover upon the resery'oir'siofthat oil lnay be, entered therein, this Sp in alsol secu ly i i fldth neve f h 3 PQ iQDE and when 7 the V ed from the sid fi h rervoir,;itmay e .turned at Irish? e llss the res ry ry, and wil be A forsecuring the dish drill to the-supporting arm as set forth above; "Thisp I yyllthqa central outlet opening 1 28,; The ppe end. of, the su lpipe 22 B h gh t p ni nd: i ps flanges '31 which "are adapted to.

held position the lubrifc a-nt is i 'being entered into the reservoir.As soon Y as the cover-"is positi'onedin its, proper place ,the springyvill holdthe same in close en- "gageme'nt'with thereservoir; Thisreser- ,yoi r 25 is positioned adjacent the top ofthe shoe Isothat oilmay be readily introduced In the forin shown in Fig. '3 where the boltis used as anlordinary bolt, theig-tposij l tion ofjthejbolt issimplyireyersed that; is, thebolt: is passedthrough the oi-lopening V ewhichgis closedby -the;cap.; 16,vshanlcfirsh in the spindle,1thewasher.andfthe emacting parts to extend beyond the' outer viaee f thez drawbar, to accormnodatefla nuts-35' so' that the" shankpassesgthrough the:bone f 80,

Th s 11 When-tigh ened upon/ -theashanlg metres {the bolt toward the; vdraw bar untilhehead' theicbe a ut w t a all o the oil chamber andaccordingly is bent at 7 right angles and thef vfree endgoi? the pipe isofi'set gor fpnovided with-an:- out:- wardlyextending flange 3.6. Anutfl37 hay-g ingathreade'd reeess therein is adapted'to, i

secure the end of the suppl-y pi-pe to v the threaded shank-oi theb'oltr opening 382 3 1 with he threaded'reeessfso"that thefendof V j rprovided in the nut.

3 l zco muni ates the 'pipe 22 may be. passed throughthe'openzrthat asthe nut 37 issecureduponthethreaded shank of ,the bolt, the flange :36willi be carried into; close, engagement with; the end of. the shankandaccordinglyglthe: oil;

Qilduct through the'bol-t. v.

operatlon, the lubricant; V

the reservoir 25, by grzwityf down thesups v fie lneseh a disktothenSupportin h lQW-er V .endQf he oil .skl'pplyvpipe ,22 i this(Ease;

will be brought intocornniunicationithjthe' V I ly pipe 22,-. andithenthroughthe l il aua:

or bore to'the bolt. Fizomsthel-bolt, "bricant will pass into the .oil'cha nb the I spind ll s e di k and-h ip-0 t e spind e; hea u en 1W downbetween the. spindle; the disk; an

a e o fd gly wi qroiighlyi fibii r 1 1 5 te v arious part reqmrmg such1am-- fiation so hat I h izd'vs 2i:W llhave-t s-m a:

all times, free from all foreignl inatte i -sueh as'dustandthe like- IIt ist .b-;.un erst d.,thatrthe tom o my n en h r h: ew-n and de$ribeisto be taken as a preferred example oithe same and'thatvarionschangesi-in thg gh p i1 V siz and; arrang me t f pa ts may-heirsso ed. to W th-Q11 par ng tr m the spiri f eirv i i c aims .vei tio'n rbr the-ISQQP ofthggsub i f'lhe poli b fi Wit-1 .2 el mp9s; a;

spindle carried by said support, a disk drill mounted upon said spindle,of a hollow bolt passing through said support and spindle and extendinginto said oil chamber for conveying lubricant to the oil chamber, andfor securing the spindle to the support.

2. The combination with a support, a spindle carried by said support andhaving an oil chamber therein, a disk drill mounted upon said spindle,of a hollow bolt passing through said support and spindle and extendinginto the oil chamber for conveying lubricants to said oil chamber, thehead of said bolt abutting with a. wall of the oil chamber in thespindle, and a nut upon the other end of the bolt for abutment with thesupport for securing the spindle to the support.

3. The combination with a support, a stationary spindle carried therebyand having an oil chamber therein, a disk drill rotatabl mounted uponsaid spindle, of a hollow bo t passing through the support and spindleand extending into the oil chamber, and means for supplying lubricantsto the hollow bolt.

4. The combination with a support, a stationary spindle carried therebyand having an oil chamber in its outer end, a disk drill rotatablymounted upon the outer end of said spindle, of a hollow bolt assingthrough the support and spindle an extending into the oil chamber, thehead of said bolt abutting with a wall of the oil chamber in thespindle, a nut upon the other end of the'bolt for abutment with thesupport for securing the spindle to the support, and means carrying anoil pipe for detachably connecting the oil pipe with the same end of thespindle.

5. The combination with a support, a spindle, a disk mounted on saidspindle, of a hollow bolt extending through the spindle and the supportfor mounting the former upon the latter and for lubricating the spindle.

6. The combination with a support, a

spindle having a threaded opening therein, a disk mounted upon thespindle, of a hollow bolt projecting through the support and having itsthreaded end received in said threaded opening of the spindle forsecuring the latter to the former, and for conveying lubricant to thespindle.

7. In combination, a support, a spindle, and a bolt extending throughsaid spindle and support for mounting the former, and having an oilpassage therethrough for conveying lubricant to the spindle.

8. In combination, a support, a stationary spindle carried thereby andhaving an oil chamber therein, and a hollow bolt extending through saidspindle and support for conveying lubricant to the oil chamber and forsecuring the spindle to the support.

9. In combination, a support, a spindle carried thereby and having anoil chamber therein, a disk drill mounted upon the spindle and havingits inner face forming one wall of said oil chamber, and means extendingthrough the support and spindle and extending to said chamber forconveying lubricant thereto, said means also being provided to securethe spindle to the support.

10. In combination, a support, a spindle carried thereby and having anoil chamber therein, a disk drill mounted upon the spindle and havingits inner face forming one 7 wall of said oil chamber, said disk drillhaving an opening communicating with the oil chamber in the spindle, anda hollow bolt extending through the support and spindle and extending tosaid chamber for conveying lubricant thereto, the head of said boltbeing of a size to pass through the opening in the drill.

In testimony whereof I aflix my signature in presence of two witnesses.

ROBERT W. LEWIS. Witnesses:

C. J. Knocross, J. V. Laws.

